Créer un AlertDialog sous Android

Bonjour
Pour créer un AlertDialog sous Android voici un exemple démonstratif:

@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
int title = getArguments().getInt("title");

return new AlertDialog.Builder(getActivity())
.setIcon(android.R.drawable.ic_dialog_alert)
.setTitle(title)
.setNegativeButton(R.string.alert_dialog_cancel,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int whichButton) {
((DialogActivity) getActivity())
.doNegativeClick();
}
})
.setPositiveButton(R.string.alert_dialog_ok,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int whichButton) {
((DialogActivity) getActivity())
.doPositiveClick();
}
}).create();
}